[conda] Make this macosx only (unfortunatelly)

conda/meta.yaml

@@ -6,6 +6,7 @@ package:
   version: {{ environ.get('BOB_PACKAGE_VERSION', '0.0.1') }}
 
 build:
+  skip: true  # [not linux]
   number: {{ environ.get('BOB_BUILD_NUMBER', 0) }}
   run_exports:
     - {{ pin_subpackage(name) }}